JPS6237625Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a component supply device that supplies components arranged in a line one by one to a predetermined position.

Recently, automatic assembly devices using pallet conveyors have become popular in order to reduce product costs, stabilize quality, and save labor. This type of automatic assembly equipment places a desired assembly part on a pallet, stops it at a predetermined position, and then transports other small parts to a predetermined position on the assembly part.
A common method of assembly is to screw the small parts onto the assembled parts using a screwdriver or the like placed above the small parts. In this case, a component supply device is required to supply small parts to the assembled components on the pallet, but a component supply device shown in Fig. 3 is an inexpensive component supply device of this type. Not too much. This parts supply device 21 has a bracket 22.
The component holding unit 24 is moved along a substantially inverted U-shaped groove 25 cut into the bracket 22 by raising and lowering a drive source 23 disposed above the bracket 22, thereby transporting the small component to a desired position. Therefore, it has the advantage of requiring only one driving source, being extremely inexpensive, operating reliably, and having fewer failures. However, it is necessary to machine a substantially U-shaped groove 25 in the bracket 22, which is extremely troublesome, and the machining cost accounts for a large proportion of the cost of the entire device. A device 21 is desired.

The present invention was devised in response to the above-mentioned demands, and examples thereof will be described below with reference to the drawings. In FIGS. 1 and 2, reference numeral 1 indicates a bracket 22 fixed to the base 2. As shown in FIG. A rotary actuator 3, which is a rotational drive source, is fixed to the bracket 1, and a main gear shaft 6 is connected to the drive shaft 4 via a connector 5. The main gear shaft 6 is rotatably held by the bracket 1, and a drive gear 7 is fixed to the end thereof. This drive gear 7
A first driven gear 8 and a second driven gear 9 are disposed on both the upper and lower sides of the bracket 1, sandwiching the bracket 1, and meshing with the bracket 1. It is fixed to a rotatably held slave gear shaft 10 and configured to be rotatable. The first driven gear 8 has a larger number of teeth than the second driven gear 9,
This number of teeth is determined by the number of teeth in the component holding unit 1 at the desired position.
It is set according to the inclination angle of 1.

Further, a first fixed lever 12 and a second fixed lever 13 extending in arbitrary directions are fixed to the front surfaces of the first driven gear 8 and the second driven gear 9, respectively. One end of the swing lever 14 is connected with a pin so that the swing lever 14 can slide on the front surface thereof. In addition, the swing lever 1
4 and the second fixing lever 13, a main body 15 of the component holding unit 11 is connected with a pin, and the body 15 of the component holding unit 11 is connected with a pin between the first fixing lever 12, the second fixing lever 13, and the second fixing lever 13. Swing lever 14
A link mechanism is formed by the main body 15 of the component holding unit 11, and as the first fixed lever 12 and the second fixed lever 13 rotate and the swinging lever 14 swings, the component holding unit 11 The main body 15 is configured to slide on the front surfaces of the second fixed lever 13 and the swing lever 14 to reverse their positions.

Further, a component holder 16 is fixed to the main body 15 of the component holder unit 11, and a chuck claw 17 of the component holder is closed by the drive of a built-in cylinder (not shown), and a small component at a predetermined position is held. It is configured to be clamped.

In the above component supply device, the component holding unit 11
is placed above the small parts placed at a predetermined position, and then the rotary actuator 3 is driven.
Accordingly, when the drive gear 7 rotates clockwise in FIG. 1, the component holding unit 11 descends from that position. When the component holding unit 11 reaches directly above the small component, the built-in cylinder is activated and the chuck pawl 17 clamps the small component. Thereafter, when the rotary actuator 3 rotates counterclockwise, the second fixed lever 13 rotates approximately half a turn and reaches a predetermined position. At the same time, the first fixed lever 12 also rotates, but since the first driven gear 8 has a large number of teeth, it rotates only by a rotation angle that is inversely proportional to the ratio of the number of teeth. Therefore, the main body 15 of the component holding unit 11 is tilted at a predetermined angle of inclination, and even if a small component is placed on an inclined surface, it can be placed at a predetermined position without any problem. Thereafter, the built-in cylinder moves back and the chuck pawl 17 separates from the component.

The rotary actuator 3 returns to its original position, and the component holding section 17 also returns to its initial position, preparing for the next operation.

It goes without saying that even if a motor is used as the rotational drive source 23, similar effects can be obtained.

As explained above, the present invention combines a rotary drive source and a plurality of gears, and is configured so that the component holding unit is moved by a link mechanism operated by the rotation of the gears, so the mechanism of the device is extremely simple. Moreover, there are advantages such as reliable operation, fewer failures, no need for complicated machining, and an extremely inexpensive parts supply device. Further, the present invention has the advantage that there is no need for a guide shaft for guiding the component holding unit, the number of parts is extremely reduced, and the assembly of the device itself is extremely simple. Furthermore, in the present invention, the two gears that rotate in response to rotation from the rotary drive source have different numbers of teeth, so the rotation angles of each gear are different, making it difficult to hold the component holding unit at a predetermined angle of inclination. It also has the advantage that even if the parts are placed on an inclined surface, the parts can be fed without any problem.

[Brief explanation of drawings]

FIG. 1 is a front view of the main part of the present invention, FIG. 2 is a sectional view of the main part of FIG. 1, and FIG. 3 is a front view of the conventional example. DESCRIPTION OF SYMBOLS 1... Bracket, 2... Base, 3... Rotary actuator, 4... Drive shaft, 5... Connector, 6... Main gear shaft, 7... Drive gear, 8...
...First driven gear, 9...Second driven gear, 10
...Follow gear shaft, 11 ...Component holding unit, 1
2...First fixed lever, 13...Second fixed lever, 14...Swinging lever, 15...Main body, 16...
. . . Component holding unit, 17 . . . Chuck claw, 21 .
Groove.

Claims (1)

[Claims for Utility Model Registration] A drive gear 7 that rotates in response to the rotation of a rotational drive source, and a first driven gear 8 and a second driven gear 9 that are positioned so as to sandwich this drive gear 7 and mesh with each other are arranged. , a first fixed lever 1 that rotates integrally on the front surface of each of the first driven gear 8 and the second driven gear 9.
2. Fix the second fixing lever 13, arrange the main body 15 of the component holding unit 11 so as to connect the first fixing lever 12 and the second fixing lever 13, and fix the first fixing lever 12 and the second fixing lever. 13 rotates, the component holding unit 11
In the parts supply device configured to move the main body 15, the first driven gear 8 and the second driven gear 9 have different numbers of teeth, and one end of the swinging lever 14 is connected to the first fixed lever 12 with a pin. The main body 15 of the component holding unit 11 is connected to the other end of the swing lever 14 and the second fixed lever 13 with a pin, and the main body 15 of the component holding unit 11 is connected to the front surface of these levers with a pin. 13. A component supply device characterized in that the swing lever 14 and the main body 15 of the component holding unit 11 form a link mechanism.